Answer:
in fraction form: -1/36, 1/216, -1/1296
in decimal form: -.03, .005, -.0008
Step-by-step explanation:
Each term is the previous term divided by -6:
-36 ÷ -6= 6
6 ÷ -6= -1
and so on...
Answer:
...
Step-by-step explanation:
The probability of the first pick to be a boy is 10/25.
Let S be the sample space and E be the event of selecting 1 girl and 2 boys.
n(S)=number of ways selecting students of 25.
=²⁵C₃
=25·24·23/3·2·1
=2300
n(E)=(¹⁰C₁·¹⁵C₂)
=[10·(15·14)/2·1
=10500
P(E)=n(E)/n(S)=1050/2300=21/46
Answer:
3 , 9/2
Step-by-step explanation:
(3- y) (2 y– 9)=0
y=3 , y= 9/2
Answer:
second option
Step-by-step explanation:
Given
x² - 6x - 33 = 0 ( add 33 to both sides )
x² - 6x = 33
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 3)x + 9 = 33 + 9
(x - 3)² = 42 → second option
